Develop Bugs

[root] SGS2 SIM unlock code finder

About
Galaxy S2 SIM Unlock code finder will find the SIM unlock code for your device, or the unfreeze code. It'll take a few minutes to run, but you should end up with the code to SIM unlock your device. If the code doesn't work, don't keep trying it !. You may end up with a freeze. In that case, the program can also find the unfreeze code, but if the SIM unlock code is wrong in the first place, maybe so is the unfreeze code
Based on Odia's work here: http://forum.xda-developers.com/showthread.php?t=1064978
Thanks / Donate
Press the thanks button, and/or donate (or not) to Odia and/or myself
Also, please rate it 5 stars in Market if it works for you... I think some people who sell unlockers are purposely 1 starring it (seeing as nobody has reported any problems)
Download
Market link (mobile): market://details?id=eu.chainfire.sgs2simunlockcode
Market link (desktop): https://market.android.com/details?id=eu.chainfire.sgs2simunlockcode
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Also, attached !
!!! IMPORTANT NOTE: On some newer SGS2 devices, it does not work at all. You can try "Galaxy_S Unlock" app from "Helroz", but beware, it's unlock method is much more dangerous !!!
THIS IS ONLY FOR NON-US RESIDENTS, SORRY. YOUR LAWS HAVE GONE BACKWARDS, YOU'RE NOT ALLOWED TO SIM UNLOCK NO MORE

Nice. Good job.

Thank u so much... Keep up your great work, Chainfire

Downloaded and ran on my unlocked device and it came up with 00000000.
I am running to find the unfreexe code too, though not really sure how it works? Should I expect a valid code?

There is no SIM unlock code because there is no SIM lock ? Not sure about the unfreeze code, but I doubt it'll come up with one.

Nicely done.
You are truly a productive person.

Chainfire said:
There is no SIM unlock code because there is no SIM lock ? Not sure about the unfreeze code, but I doubt it'll come up with one.
Click to expand...
Click to collapse
Thanks.
I thought a SIM unlock code was realted to the device, not to the device and the *current state of the SIM lock* (ie, it must be locked to display an unlock code!)
It came up with an 8 digit number starting 9242
Is it actually a useful number if you have no sim lock?
James

I don't think so

Hi Chainfire, just poped into your thread to say, APP appears to be working fine.
As a note for everyone, even on a factory unlocked model the unfreeze code should still be present.

Odia said:
Hi Chainfire, just poped into your thread to say, APP appears to be working fine.
As a note for everyone, even on a factory unlocked model the unfreeze code should still be present.
Click to expand...
Click to collapse
But what is it actually useful for ?

This is crazy.
Requested my unlock code from o2 over a week ago. They contacted me on Saturday to say they do not have it and that they will have to resubmit the unlock code request to Samsung.
I still do not have an unlock code after 2 weeks of owning the phone.
Literally 5 minutes after seeing the xda tweet about this thread my phone is now unlocked.
Crazy, absolutely crazy that the community can do in 5 minutes what the corporate world can't achieve in 2 weeks.
I am blown away, many many thanks to the op, this is outstanding

O2 were no use at all for this. Chainfire's app sorted the issue in minutes. Great work. Thanks.

I already unlocked mine using Odia's method but this looks way easier.. Good Job man..

Let me act stupit and ask. What this do? What is it usefull for?
I have myself 5 virgin sim cards from tmobile.
Thanks for any explanatios

edit: nevermind i missed the [] tag

Chainfire said:
But what is it actually useful for ?
Click to expand...
Click to collapse
Normally in Samsung phones if you enter a phone lock code (PLK) and you forget the code, the master code can be used to reset it, I am not sure if Samsung Android phones would work in the same way because the PLK does not seem to be written to nv_data.bin when activated.

kpoyias96 said:
I already unlocked mine using Odia's method but this looks way easier.. Good Job man..
Click to expand...
Click to collapse
Its a lot easier for the less experienced users and Chainfire has done a very good job with the APK, although using the manual method with a GFX card to brute force the hash is a lot quicker

I need help - got my S2 from O2 which it's locked to. After nine days, still no unlock code from O2, apparently delays in obtaining them.
Downloaded and ran this app, but failed with 'Could not acquire Supersuer access! Is your device rooted?'
What does this mean and what do I need to do to resolve it?
Thanks in advance.

planet57 said:
I need help - got my S2 from O2 which it's locked to. After nine days, still no unlock code from O2, apparently delays in obtaining them.
Downloaded and ran this app, but failed with 'Could not acquire Supersuer access! Is your device rooted?'
What does this mean and what do I need to do to resolve it?
Thanks in advance.
Click to expand...
Click to collapse
The message "Could not acquire Supersuer access! Is your device rooted" actually told you what is wrong. Guess you did not root your S2. Follow the link to get your S2 rooted.
http://forum.xda-developers.com/showthread.php?t=1075278
http://forum.xda-developers.com/showthread.php?t=1056334

I have installed this and got my Unfreeze Code, however the Unlock code is just comes up as 0000000000.
It also take much less than a second to generate it, so I assume there's a problem?
The Unfreeze code took a few minutes and produced an actual code ... have I missed something?

[Unlock bootloader] HTCdev.com has support HTC S710d (It's Offical)

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Verizon Droid Incredible 2 in America = HTC S710D in China.
Offical homepage: http://htcdev.com/bootloader/
Rom required: 3.06.1401.0
From website:
It is our responsibility to caution you that not all claims resulting or caused by or from the unlocking of the bootloader may be covered under warranty. Please note that unlocking your bootloader does not mean that you will be able to unlock the SIM lock. Unlocking your SIM lock is at the discretion of your operator/carrier and is not part of the bootloader unlocking scope.
Our devices have been designed with our hardware and software specifications in mind and unlocking the bootloader will change the software and may cause unexpected side effects. It is impossible for HTC to ensure the proper functioning of your device after this. In the worst case scenario, it is possible that your device may be physically damaged due to overheating or the behavior of your device might be altered including, but not limited to, hearing aid compatibility (HAC) and specific absorption rate (SAR) values.
Some content on your device may also be invalidated and cannot be accessed any more because of invalid DRM security keys. This includes content that you may have purchased through a 3rd party vendor and through HTC. Furthermore, although you will still be able to receive updates to your device via FOTA (“firmware over the air”), we do not guarantee that updating your device via FOTA will not render your device unusable. Please understand that you will not be able to return your device to the original state and going forward your device may not be held covered under the warranty for all claims resulting from the unlocking of the bootloader. HTC bears no responsibility if your device is no longer usable afterwards.
HTC is committed to assisting customers in unlocking bootloaders for HTC devices. However, due to some of our carrier customers concerns, certain models with specific restrictions may not be able to be unlocked. Please refer to our list of supported devices to see if your device is eligible for unlocking the bootloader.
We strongly suggest that you do not unlock the bootloader unless you are confident that you understand the risks involved. This is a technical procedure and the side effects could possibly necessitate repairs to your device not covered under warranty. If you are still interested in unlocking the bootloader, and you understand the consequences both to your device and to your warranty, then you may refer to the following pages where we have provided the unlocking instructions.
Click to expand...
Click to collapse

This looks like it only for the China Telecom version. HTC will only unlock devices with carrier approval. I haven't tested (already S-Off), but I don't believe it will work for the US version.

Didn't work on my Inc2
This is what was returned after I submitted my Fastboot identifier to get an unlock code...
Error Code: 170.
Error Reason: CID Not Allowed.

diavolo770 said:
Didn't work on my Inc2
This is what was returned after I submitted my Fastboot identifier to get an unlock code...
Error Code: 170.
Error Reason: CID Not Allowed.
Click to expand...
Click to collapse
read the OP..
"Rom required: 3.06.1401.0 "

andybones said:
read the OP..
"Rom required: 3.06.1401.0 "
Click to expand...
Click to collapse
Crap, I feel like a complete 'tard. I got so excited and was pressed for time I neglected to read the whole thing. Well, it was a learning experience none the less.

diavolo770 said:
Crap, I feel like a complete 'tard. I got so excited and was pressed for time I neglected to read the whole thing. Well, it was a learning experience none the less.
Click to expand...
Click to collapse
It's all good, you should NEVER rush anything with root. You most likely skipped over the part that if it did work, there is no way to reverse it, AND since they now know you are rooted, warranties are voided, and they can probably know when you are stealing wireless tether.
Not too mention, we got root, awhile ago.

And if its anything like the htc evo3d unlock its not really a true unlock. I know some of the evo guys that went the official route could not even flash kernels. Just my two cents but i would use revolutionary or xtc clip
Sent from my ADR6350 using xda premium

oxlong27 said:
And if its anything like the htc evo3d unlock its not really a true unlock. I know some of the evo guys that went the official route could not even flash kernels. Just my two cents but i would use revolutionary or xtc clip
Sent from my ADR6350 using xda premium
Click to expand...
Click to collapse
yea it isn't a full nand lock like say the XTC clip, the sim is still locked.

Yes that's what I thought. You willingly void your warranty and you don't even get the full advantages. If I wasn't rooted and my phone came with 2.3.4 I would wait on an exploit or use a clip. But to each his own I guess
Sent from my ADR6350 using xda premium

unlock bootlooader what is it good for anyway?

koutouyo said:
unlock bootlooader what is it good for anyway?
Click to expand...
Click to collapse
It's Offical below:
Why is my security still on (S-On) after I have unlocked my bootloader?
Your device is shipped with Security on (S-ON) to protect your system software configuration (such as the bootloader, radio, boot, recovery, system and others). After you have unlocked the bootloader, however, you will have lifted the restrictions on boot, recovery and system. This means you can customize boot, recovery and system images on your phone as you desire. You can easily see that you have successfully unlocked the bootloader by looking at the top of the screen when entering the bootloader screen. Security is left on to protect things like the radio, and SIM lock.
Click to expand...
Click to collapse
Someone has tested on his S710D(S-ON).
After unlock, he can flash any recovery, diy roms with root.
Radio can't be flash.

Unlockable Bootloader?

Anyone hear anything on this yet?

Haha you have been a little bit faster than me xD Would have been my question as well, are there any information about this?

Razer already stated it would be an unlocked bootloader. Can't find video but it's mentioned in one of the first hands on

zathus said:
Razer already stated it would be an unlocked bootloader. Can't find video but it's mentioned in one of the first hands on
Click to expand...
Click to collapse
Uhhh these are great news! Would be nice if they had a similar warranty policy concerning this as OnePlus...

RogerF81 said:
Haha you have been a little bit faster than me xD Would have been my question as well, are there any information about this?
Click to expand...
Click to collapse
https://imgur.com/gallery/E9G5P

Youssarian said:
https://imgur.com/gallery/E9G5P
Click to expand...
Click to collapse
To me, that sounds more like that it is going to be unlockable but it won't shipped unlocked.

I saw somewhere the bootloader can be unlocked via the developer options menu? iirc In a menu though..

benengyj said:
To me, that sounds more like that it is going to be unlockable but it won't shipped unlocked.
Click to expand...
Click to collapse
It ships _carrier unlocked_ (sim).
Bootloader is unlocked by the user in dev options on the phone, should the user so choose to do so. Voids the warranty.
Rooting the phone is up to the user, but also voids the warranty, as the reply in the image says.

kungpaoshizi said:
I saw somewhere the bootloader can be unlocked via the developer options menu? iirc In a menu though..
Click to expand...
Click to collapse
There will maybe a option to enable unlocking the bootloader.
This will not unlock the bootloader, it will only enable the command to unlock it I think.
Like on the oneplus.

If you live in the EU, unlocking the bootloader and rooting the phone - wont void the warranty, if you have a hardware related fault.

I do find the EU has better consumer protection than the US.
What companies can do here while taking your money? Uh ya, that's one reason I bet the USA is becoming a big laughing stock of the world.

kungpaoshizi said:
I do find the EU has better consumer protection than the US.
What companies can do here while taking your money? Uh ya, that's one reason I bet the USA is becoming a big laughing stock of the world.
Click to expand...
Click to collapse
YMMV But from what I've seen with a few other companies, if the repair is hardware related and not software they almost never actually care if its bootloader locked or not. Can't say Razer/Nextbit would be the same though.

Ya I've not dealt with razer for the laptops. I know for my mouse and keyboard record, they're good on responding, synapse updates happen fast enough to almost be annoying, hardware seems decent, though about 20% fails after the first year. (though I found out later the mouse doesn't actually fail, it's electric "char" that builds up on the metal switch internally because it's so thin)
Got the phone otw though, pretty excited. Can't wait for the analytics to start trickling in to see what we can do with this beast.

I have one already. It works. Just tried it. Bootloader unlocked.
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nikitis said:
I have one already. It works. Just tried it. Bootloader unlocked.
Click to expand...
Click to collapse
Sweet! Thanks for uploading this.
Now if we can figure out how to root it while we wait for a TWRP Port.
Looks like all we need is a copy of the boot.img. Then we can patch it using Magisk.

nikitis said:
I have one already. It works. Just tried it. Bootloader unlocked.
Click to expand...
Click to collapse
That's not how you unlock the bootloader, that setting is part of the process and enables the ability for you to unlock the bootloader via fastboot.
I've made a thread on how to unlock the bootloader and linked it below
https://forum.xda-developers.com/razer-phone/how-to/guide-to-unlocking-bootloader-t3706462

zipxavier said:
That's not how you unlock the bootloader, that setting is part of the process and enables the ability for you to unlock the bootloader via fastboot.
I've made a thread on how to unlock the bootloader and linked it below
https://forum.xda-developers.com/razer-phone/how-to/guide-to-unlocking-bootloader-t3706462
Click to expand...
Click to collapse
You would not be able to select that option if the bootloader was unable to be unlocked. It unlocks the first key. If that key is unlocked, then fastboot oem unlock bootloader can work. So it is valid proof that it's unlockable.

nikitis said:
You would not be able to select that option if the bootloader was unable to be unlocked. It unlocks the first key. If that key is unlocked, then fastboot oem unlock bootloader can work. So it is valid proof that it's unlockable.
Click to expand...
Click to collapse
Right, I didn't dispute that but he said "Bootloader unlocked" which at that point, it was not. If it was, that setting would be greyed out and it would say "Bootloader is already unlocked"

The three questions I asked when the phone was announced, and finally weeks later they are answered

Return to stock issue - "bootloader is already unlocked"

Hi Everyone,
I'm trying to re-lock my bootloader but the OEM Unlock toggle is stuck to the left position whilst displaying the message "Bootloader is already unlocked".
If I try to switch the toggle to the right position, the device will factory reset and then when it powers back up, the toggle is in the left position again.
Is this a result of knox being tripped?
In DL mode it displays both FRP and OEM lock as OFF.
Thanks for the help!
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Just ignore it, it causes no problems and others have had the same problem since unlocking theirs

*Detection* said:
Just ignore it, it causes no problems and others have had the same problem since unlocking theirs
Click to expand...
Click to collapse
Yeah I know that it's not technically an issue but I want to sell the phone and would like to lock the bootloader before doing so.
Is there no way to re-lock it?
If not... would it stop the phone from passing safetynet/google pay checks?
Thanks
EDIT: I've just tested and google pay won't work on it in this state.

You tripped KNOX, many things won't work on it again anyway

*Detection* said:
You tripped KNOX, many things won't work on it again anyway
Click to expand...
Click to collapse
I'm quite aware of that. What i'm specifically trying to ascertaine is whether or not the bootloader is re-lockable.
If need be I'll just install magisk on stock and put the info in the eBay listing.
Thanks for the assistance anways!

As I said, other members have already posted about the same problem, I have not seen a solution yet, although you could read through a few of those threads and see if they were updated

Any news on this? I want to relock too! With it unlocked and stock os. I can't use Google pay or citrix workspace etc!

Hi, is there new news about this problem? the same happens to me. I have the bootloader unlocked with the button to the left, so I can't block it in a rom stock. This causes Google Play to say that the device is not certified and some applications are not installed. Can anybody help me?

MadSilence said:
Any news on this? I want to relock too! With it unlocked and stock os. I can't use Google pay or citrix workspace etc!
Click to expand...
Click to collapse
why in gods green earth would you actually WANT Citrix? Kidding, i use it 40 hours a week and its abysmal, as if you didnt already know that.
naztam said:
Hi, is there new news about this problem? the same happens to me. I have the bootloader unlocked with the button to the left, so I can't block it in a rom stock. This causes Google Play to say that the device is not certified and some applications are not installed. Can anybody help me?
Click to expand...
Click to collapse
So, the bootloader is unlocked, have you guys tried flashing the Odin files with a newer revision of the bootloader?

Thanks for your answer! I have tried to update it, to make a downgrade, to wait 7 days ... and nothing, everything remains the same. The bootloader is binary 6, and the only move I have been able to do with odin is update and donwgrade in the July and August updates. Maybe if Samsung updates the bootloader to binary 7, it will be solved, it is honestly the only thing left for me to try.

naztam said:
Thanks for your answer! I have tried to update it, to make a downgrade, to wait 7 days ... and nothing, everything remains the same. The bootloader is binary 6, and the only move I have been able to do with odin is update and donwgrade in the July and August updates. Maybe if Samsung updates the bootloader to binary 7, it will be solved, it is honestly the only thing left for me to try.
Click to expand...
Click to collapse
what firmware version are you on currently? if your bootloader is revision 5, flash a rev 6 and see what happens

I am in the last firmware
I have the rev6, I can only flash the firmware of July and August

naztam said:
I am in the last firmware
I have the rev6, I can only flash the firmware of July and August
Click to expand...
Click to collapse
[email protected] then. maybe a ver 7 will release soon?

Question LE2127 Bootloader unlock issues and ROM flash

It's been 9 years since I last did anything like this and resources seem a bit scattered so I would like a push in the right direction to get my phone where I want.
My phone is on LE2127_11_f.27 and want to unlock the bootloader, install twrp, and flash Lineage OS but I'm running into an issue with bootloader unlocking.
The device is carrier unlocked and I have a token file provided from oneplus but it doesnt seem to be working.
OEM unlocking is on but I get this error when trying to unlock it.
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Im guessing the file they sent me is wrong because I had to communicate with customer support as my serial number was 7 digits long as opposed to 8 digits.
With this in mind, Ive also seen posts saying I don't need to have a token to unlock.
Should I use magisk to unlock it instead? Are there advantages/disadvantages to it? (it being a dependency, adding a safety net, etc.)
Finally, what should I do in what order? I can figure out the details of execution but I want to make sure everything will go smoothly.

Kittenphile said:
It's been 9 years since I last did anything like this and resources seem a bit scattered so I would like a push in the right direction to get my phone where I want.
My phone is on LE2127_11_f.27 and want to unlock the bootloader, install twrp, and flash Lineage OS but I'm running into an issue with bootloader unlocking.
The device is carrier unlocked and I have a token file provided from oneplus but it doesnt seem to be working.
OEM unlocking is on but I get this error when trying to unlock it.
View attachment 5921633
Im guessing the file they sent me is wrong because I had to communicate with customer support as my serial number was 7 digits long as opposed to 8 digits.
With this in mind, Ive also seen posts saying I don't need to have a token to unlock.
Should I use magisk to unlock it instead? Are there advantages/disadvantages to it? (it being a dependency, adding a safety net, etc.)
Finally, what should I do in what order? I can figure out the details of execution but I want to make sure everything will go smoothly.
Click to expand...
Click to collapse
How old is the phone? You should not have been able to get an unlock token with only 7 digits in a serial number. Been there and done that. Again how old is the phone?

Also did you buy the phone from T-Mobile, and is TMO your cell carrier? I can get you where you need to be, but need the information.

I can link you to a TMO to GLO MSM Tool, then you can unlock bootloader without a token, then install lineageOS, install TWRP and magisk.

How old is the phone? You should not have been able to get an unlock token with only 7 digits in a serial number. Been there and done that. Again how old is the phone?
Click to expand...
Click to collapse
Also did you buy the phone from T-Mobile, and is TMO your cell carrier? I can get you where you need to be, but need the information.
Click to expand...
Click to collapse
I got this as a warranty exchange direct from tmobile probably late 2019 early 2020
Tmobile was my carrier but now i use metro
So, im hearing that i use tmo to glo msm, then unlock bootloader how?

TheGhost1951 said:
I can link you to a TMO to GLO MSM Tool, then you can unlock bootloader without a token, then install lineageOS, install TWRP and magisk.
Click to expand...
Click to collapse
Also why would I want magisk? i actually dont really need root tbh.
Also you got discord? id love to chat there for more realtime replies. I will post the workflow here when done for reference's sake.
Garde#8124

Kittenphile said:
I got this as a warranty exchange direct from tmobile probably late 2019 early 2020
Tmobile was my carrier but now i use metro
So, im hearing that i use tmo to glo msm, then unlock bootloader how?
Click to expand...
Click to collapse
I will give you the link for the MSM Tool to convert you from TMO to GLO Thursday because until then I will be on the road. It will convert your TMO to GLO so you can unlock the bootloader. Patience!

If you don't want root, you don't have to root to install LineageOS.

I will have it for you Wednesday!

In the meantime, disable driver signing on PC, reboot PC, download the latest OnePlus and Qualcomm USB drivers and install them and then reboot PC. Then you will be ready to convert the phone!

TheGhost1951 said:
In the meantime, disable driver signing on PC, reboot PC, download the latest OnePlus and Qualcomm USB drivers and install them and then reboot PC. Then you will be ready to convert the phone!
Click to expand...
Click to collapse
I will have it for you Wednesday!
Click to expand...
Click to collapse
Thank you.

My power button is not working. Is there any command to exit from edl mode?

yes there is. but edl itself has a timeout, so it won't accept commands